Concrete wall construction



INVENTOR. charles ovir ATTORNEY.

llllllllll c DOVING CONCRETE WALL CONSTRUCTION Filed Oct. 2 8, 1924 May 11 1926.

Patented May 11 1926.

UNITED STATES CHARLES DOVING, OF GREAT FALLS, MONTANA.

CONCRETE WALL CONSTRUCTION.

Application filed October 28, 1924. Serial No. 746,299..

My invention relates to concrete wall construction and more particularly to a monolithic form of concrete wall construction.

The main object of my invention is to provide a wall construction for buildings which is fire-proof, frost-proof and dampproof.

Another object is to provide a wall construction which will be" a solid unit, free from joints and yet will not be likely to crack or crumble.

Another object is to provide a wall construction of the character described, which is comparatively inexpensive and which is at the same time substantial and durable.

Other objects and advantages will appear hereinafter and while I show herewith and will describe a preferred form of construction, I desire to be understood that I do not limit my invention to such preferred form but that various changes and adaptations may be made therein without departing from the spirit of my invention as hereinafter claimed.

Referring to the drawings which accompany this specification and form a part thereof:

'Fig. 1 is a fragmentary view in perspective of the end portion of a wall, showing in elevation and in section the simplest form of my improved wall construction.

Fig. 2 is a sectional View of the wall shown in Fig. 1 taken on line 9'2 of that figure.

Fig. 3 is a view in perspective of the reinforcing framework used in my wall construction.

In constructing the wall a footing course 10 is first laid in the usual way. The usual wall forms (not shown) which fix the dimensions of the wall are built in proper position with relation to the footing and a series of core forms (not shown) made up of separable parts, are placed in the footing near one side thereof at a fixed distance and form the inner wall form. Concrete is then poured between the wall forms around the core forms to a height somewhat below the middle point of this first series of core forms. After allowing the concrete to set slightly, a second series of similar core forms is placed thereon at an equally spaced distance from the outer wall form, a similar space being left between the two series of core forms, which are made of a thickness approximately equal to said spaces. Concrete is then poured around both series of cores up to near the top of the first placed series After allowing the second pouring to set sufficiently to permit withdrawal of the first series of core forms, these are removed, leaving spaces 11 with a wall portion 12 between them and the inside wall form. A third series of core forms of special construction are now placed at regularly-spaced intervals over the opening 11, left by the withdrawn forms, and a third pouring of concrete is made around these and the second series.

After this last pouring has set, the third series of core forms is removed, leaving transverse bond sections 13 at regular intervals along the wall. A coating of tar 141: is applied to the interior wall surfaces through openings 15 left by the third series of core forms. The first series of core forms is now placed over openings 15 and the pouring is repeated up to near the top of the second series of core forms and after the neces sary time has been allowed for setting, this second series of cores is removed, leaving openings 16 similar to openings 11, the former, however, being in staggered relation to the latter.

The third series of core forms is now placed over openings 16 and concrete is again poured, forming bond sections 17 in staggered relation to bond sections 13 and openings 18 in staggered relation to openings- 15. Thus by a succession of pourings around the core forms, which are repeatedly removed and replaced, the wall 19 is built u from the foundation.

It will be observed that the wall produced by this method of construction has continuous double air chambers throughout with a central wall section 20 and two outside wall sections 12 and 21, the central and inside wall sections being amply tied and braced by bond sections 13 and 17 Tar is applied to the wall surfaces in the second air space through openings 18.

The wall may be reinforced by a framework of vertical and horizontal rods 22 and 23, with tie rods, or tie'wires 24 cross connecting them through the bond sections in the air spaces. The vertical reinforcing rods 22 are set in position when the footing 10 is laid and the horizontal rods 23 and the rods 24 are placed at intervals as shown, durin the process of pouring the concrete. It will be seen that in this way a fire-proof 1. A hollow concrete wall construction comprising three vertical wall sections separated by two air spaces, and having bond sections which are relatively small invboth their vertical and horizontal dimensions be tween said wall sections across said airspaces, the bond sections across one air space being staggered both vertically and horizontally with relation to those across the air space toward the other side of the wall, said bond sections being integral with said wall sections.

2. A reinforced monolithic wall construction comprising an inner wall section, an outer wall section and an intermediate wall section with air spaces between the intermediate wall section and the outer wall sections, bond sections made integral with said wall sections extending across said air spaces between said intermediate wall section and said innerand outer wall sections, said bond sections across one air space being in staggered relation to those across the other air space, vertical and horizontal reinforcing rods embedded in said inner, outer and intermediate wall sections, and tie rods cross-connecting said vertical and hori zontal reinforcing rods, said tie rods being embedded in said bond sections.

CHARLES DOVING. 

